Under a joint motion by federal prosecutors and Phillipos' attorney, U.S. Magistrate Judge Marianne Bowler ordered Phillipos, 19, released from jail, where he's been held since his May 1 arrest. He'll be confined to his mother's home and be required to wear an electronic monitoring device 24/7 while he awaits trial. He'll also have to post a $100,000 bond. It was not immediately clear when Phillipos would be released.

Phillipos is accused of lying to authorities about visiting Tsarnaev's University of Massachusetts Dartmouth dorm room only hours after the FBI released photos of the bombing suspect.

Tsarnaev, 19, is charged in connection with the deadly April 15 bombings that left three people dead and 264 wounded. His 26-year-old brother, Tamerlan, died following an early morning shootout with police April 18. Dzhokhar was badly wounded and was later found hiding in a boat in the backyard of a house in Watertown, Mass. He is being held in a prison medical center.

Phillipos and two other friends, of Dzhokhar, Azamat Tazhayakov and Dias Kadyrbayev, who were also in the dorm that evening, are accused of obstruction of justice for allegedly removing a backpack containing evidence linking Tsarnaev to the bombings.

Phillipos is accused of repeatedly denying he knew about the removal of a backpack from the room that night. According to an affidavit, he admitted the fourth time he was questioned that he had not been telling the truth.If convicted, he faces up to eight years in prison and a $250,000 fine if convicted.

In court documents, Phillipos' lawyers argued their client was a "frightened and confused 19 year old" who had been subjected to "intense questioning" without benefit of a lawyer.

Phillipos is the son of a single mother Genet Bekele, who emigrated to the United States from Ethiopia.

Defense attorney Susan Church described Phillipos as a well-liked, honor roll student with many friends and supporters. At least 50 relatives, friends and other supporters attended Monday's court hearing.

In letters filed with the court on his behalf, friends and family members described Phillipos - who was majoring in marketing at UMass Dartmouth and expected to graduate in 2015 - as peaceful and non-violent.

"I was shocked and stunned when I heard the news of his arrest. I could not control my tears," wrote Zewditu Alemu, his aunt. "I do not believe that my beloved Robel crosses the line intentionally to support or assist such a horrendous act against us the people of the USA. By nature he does not like violence. He loves peaceful environment."